Product Description:

The GADSA01LA22 is an AC servo amplifier engineered by Sanyo Denki for its G Sanmotion AC Servo Amplifiers series. Within an automation cell, it sits between the motion controller and a matched permanent-magnet motor, converting low-level command signals into regulated three-phase current. The amplifier executes position, speed, and torque loops so that linear slides, rotary actuators, or indexing tables reach programmed setpoints without overrun. Its compact frame and external regeneration port make it suitable for multi-axis cabinets where thermal load and wiring space are restricted.

The power stage has an amplifier capacity of 10 A, but continuous delivery is limited to 1.2 Arms to keep silicon junction temperatures within design limits. For rapid acceleration, the drive supplies up to 4.3 Arms, giving machines short-term torque reserves without requiring an oversized unit. The internal supply section draws only 0.4 kVA from the mains, and that energy can power motors with a maximum mechanical output of 200 W. An IGBT-based sinusoidal PWM control system shapes the output, while the control function supports position, speed, and torque modes. Command channels accept analog or pulse references, and the general-purpose outputs use a sinking configuration, simplifying connection to PLC transistor cards.

Dynamic response is characterized by a bandwidth of 3500 Hz, enabling tight following accuracy across a velocity control range of 1:5000. When kinetic energy must be dissipated, an external regenerative resistor with a minimum impedance of 25 Ω can be wired across the designated terminals. The unit withstands shocks up to 20 m/s² and continuous vibration of 6 m/s², so additional damping hardware is not usually required inside standard control panels. Safe torque off is implemented without a delay circuit, and the STO path shares the power ground to reduce the number of required components.